Blockchain Jobs in Madrid, Spain

At Crossmint, we are creating the infrastructure layer to make NFTs mainstream. We are trusted by 5,000+ creators and marketplaces, like Magic Eden, David Guetta, Sacramento Kings and Tomorrowland.

Our core product is the leadingfiat on-ramp for NFTs. It enables anyone to buy them in 1 minute, even if they don't have wallets or crypto. ****Check it out here!

We have a broader suite of NFT APIs and developer tools for enterprises, including minting APIs, and custodial wallets as a service.

We’re backed by Tier 1 investment firms, have strong PMF, many many years of runway and have a very small technical and product team.

Responsibilities 💪🏽

• Proactive and reactive payment fraud management
• Build and maintain SDKs and client libraries that enable Crossmint developer communities to understand and use our products with ease
• Develop code examples, demo applications, and how-to software documentation for helping 3rd party developers on-ramp to Crossmint developer products
• Provide continuous feedback loops to product and technology leaders, informing strategies and influencing product and technology investments
• Contribute to OSS projects (3rd party and Crossmint led) that further Crossmint’s product and technical strategies
• You also advocate for and enable OSS contributions to be made by all Crossmint engineers

About you🤟🏽

• 3-5 years of experience in data science
• You have a grasp of full stack engineering
• You have experience dealing with blockchain data sources (e.g. via Dune)
• You're scrappy
• You’re good at investigation, and can get inside the mind of a hacker for preventative and reactive solutions
• You have worked on data-driven anti-fraud challenges
• Excellent written and spoken English skills

Benefits 💎

• We follow location-based compensation. We pay at the p90th percentile of salaries and equity from wherever you live 📈
• Flexible PTO 🏝
• Company laptop plus allowance of $300/quarter for any necessary home equipment 🏡💻
• Working in a disruptive and fast-growing industry where the possibilities are endless 🚀
• Company-paid trips for off-sites and team bonding ✈️🥥🌴🌈
• Flexible work schedule 🕗